Etymology: from the Spanish 'vaquero' meaning cowboy.
Also a kid's game
testing a steady hand
and a steady nerve
. For 2 or more players (age 4+).
Stack the moody mule with as many items as you can but 'Be careful. He might bucakroo'.
With a prospector theme; prime the mule and then take turns to stack items (bucket, shovel, dynamite, bedding roll, rope) onto the saddle until he finally gives up an bucks it all off again. Quite good fun initially but I don't think it has great lasting appeal.
Sold under the MB Games banner (in the UK at least) which is now one of the many companies subsumed by Hasbro